The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 1996
Filed:
Jul. 29, 1993
Masahiko Chaya, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A magneto-optical disk apparatus performs at least one of recording and reproduction of information on or from a magneto-optical recording medium having a disk shape. The apparatus is provided with an optical device including an objective lens, for irradiating the medium with a light beam, and a first magnetic field applying device for applying a magnetic field modulated according to information to a portion on the medium which is irradiated with the light beam. The first magnetic field applying device includes a magnetic head for generating a magnetic field and a floating-type slider for supporting the magnetic head. The apparatus further includes a second magnetic field applying device for applying to the irradiated portion on the medium a constant magnetic field an orientation of which is inclined with respect to the optical axis of the objective lens, and a moving device for moving the first and second magnetic field applying devices and the optical device together in a radial direction of the medium.